According to the GA/T842-2009 industry standard of the Ministry of Public Security of the People's Republic of China and the new criminal law implemented on May 1, 2011, the blood alcohol content of 80mg/100ml or more is drunk driving. Our company will be in accordance with May 1, 2011. The new criminal law enacted provides the latest gas chromatograph for the analysis of blood alcohol (ethanol) content.
Introduction to the detection method of special chromatograph for detecting alcohol content in blood
Beijing Huasheng Spectral Instrument Co., Ltd. is drunk driving according to the GA/T842-2009 industry standard of the Ministry of Public Security of the People's Republic of China and the new criminal law implemented on May 1, 2011, which means that the alcohol content in the blood reaches 80mg/100ml or more. The company's latest gas alcohol (ethanol) content analysis gas chromatograph developed according to the new criminal law implemented on May 1, 2011.
Key words: blood alcohol detection; drunk driving test blood alcohol test; blood alcohol blood alcohol detector; how to sell special equipment for checking drunk driving; drunk alcohol blood alcohol detector
Second, the working principle and advantages of the headspace sampler and gas chromatograph:
After starting, the sample is automatically heated according to the set value; the needle is inserted; the pressure is balanced; the sample is filled; the sample is filled into the quantitative tube; the six-way valve is switched to the injection; the workstation is started to start sampling and recording.
The analysis is based on the gas composition above the sample matrix to determine the content of these components in the original sample. Obviously, this is an indirect analytical method, the basic theoretical basis is the gas phase and condensed phase (liquid phase and solid phase) under certain conditions. There is a distributional equilibrium between them. Therefore, the composition of the gas phase can reflect the composition of the condensed phase. We can consider the headspace analysis as a gas phase extraction method, that is, using a gas as a "solvent" to extract volatile components in a sample. Therefore, headspace analysis is an ideal method for sample purification. Traditional liquid-liquid extraction and SPE are used to dissolve the sample in the liquid. Inevitably, some co-extracts interfere with the analysis. Moreover, the purity of the solvent itself is also a problem. This is especially important in trace analysis. Gas can be used as a solvent to avoid unnecessary interference, because high purity gas is easy to obtain and low cost, which is an important reason for the widespread adoption of headspace chromatography.
As an analytical method, the headspace analysis is simple. It only takes the gas phase for analysis, which greatly reduces the interference of the sample matrix on the analysis. As a sample processing method for chromatographic analysis, headspace is the easiest. Second, headspace analysis There are different modes that can be adapted to various samples by optimizing the operating parameters. Third, the sensitivity of headspace analysis can meet regulatory requirements. Finally, combined with the quantitative analysis capabilities of chromatography, headspace chromatography is fully capable of accurate quantification. analysis
Analytical Process: Sample Preparation - Automated Headspace Sampler Tube - Chromatography - Chromatography Workstation - Data in Ethanol
Third, HS-12A automatic headspace sampler headspace sampler (blood ethanol analysis detector, blood alcohol concentration analyzer) instrument configuration:
1.SP-3420 gas chromatograph with hydrogen flame detector 1
2. (automatic, fully automatic) headspace sampler (sealing pliers, headspace bottle) 1 set
3. A dedicated column for the analysis of alcohol in the blood (filled column or capillary column) 1
4. Nitrogen, hydrogen, air source (fully automatic) Gas purity 99.999% 1 set
5. Data processing system (computer, printer, chromatography workstation) 1 set
Fourth, HS-12A automatic headspace sampler headspace sampler operation method:
The SP-3420 gas chromatograph is connected with the HS-12A headspace sampler for use. Under the following conditions, the blood sample extracted from the site is directly injected into the injector, and after analysis, it can be obtained. An accurate analysis report.
Hydrogen flame ionization detector FID headspace bottle heating temperature 70-80oC
Capillary column headspace sample injection valve control temperature 70-80oC
Gas Chromatograph Compartment Temperature: 120oC Sample Transfer Line Control Temperature 80oC
Detector temperature: 150oC Injection valve volume: 1ml
Vaporization chamber temperature: 100oC Headspace bottle size: 5ml or 20ml
Beijing Huasheng Spectrum Instrument Co., Ltd.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
BBQ tool
Barbecue wire Grill Grate is made of high quality 304 stainless steel, never rusting and durable. BBQ Wire mesh does not have any coating or chemical ingredients, making food safer.
Multi-functional Grill Cooking Grid Grate: This wire mesh is mainly used for BBQ Grill Mat for outdoor cooking, it can also be used as a cooling and baking rack. Or you can develop other uses for it.
BBQ Grate,BBQ Mesh,BBQ Grill, grill grate,grill mesh
Shenzhen Lanejoy Technology Co.,LTD , https://www.brassinsert.net